Vehicle air conditioner system

Abstract

Provided is an air conditioner system for a vehicle. The air conditioner system for a vehicle includes a compressor, an integral condenser in which a water cooling region and an air cooling region are formed integrally with each other, an expansion valve, and an evaporator, wherein the water cooling region and the air cooling region of the integral condenser are formed on one plate, such that existing air cooling and water cooling condensers may be formed integrally with each other through one-time brazing coupling, thereby reducing a package and simplifying assembling and manufacturing processes.

The invention claimed is: 
     
       1. An air conditioner system for a vehicle, comprising:
 a compressor compressing a refrigerant; 
 an integral condenser comprising a water cooling region heat-exchanging the refrigerant compressed in and discharged from the compressor with a coolant to condense the refrigerant and an air cooling region heat-exchanging the refrigerant with air to condense the refrigerant, wherein the water cooling region and the air cooling region are formed integrally in a plate; 
 an expansion valve expanding the refrigerant condensed in and discharged from the integral condenser; and 
 an evaporator evaporating the refrigerant expanded in and discharged from the expansion valve, 
 wherein the compressor, the integral condenser, the expansion valve, and the evaporator are connected to each other by refrigerant pipes, wherein the integral condenser is a plate-type heat exchanger, and includes the water cooling region and the air cooling region formed on one plate. 
 
     
     
       2. The air conditioner system for a vehicle of  claim 1 , wherein the integral condenser includes:
 refrigerant plates formed by stacking first upper plates and first lower plates formed as pairs, a region thereof being separated in a length direction of the refrigerant plates, such that refrigerant channel parts for a water cooling condenser configuring the water cooling region and refrigerant channel parts for the air cooling condenser configuring the air cooling region are formed; 
 coolant plates stacked alternately with the refrigerant plates configuring the refrigerant channel parts for the water cooling condenser to configure the water cooling region, and having the coolant flowing therein; and 
 heat radiation fins interposed in spaces between the refrigerant plates configuring the refrigerant channel parts for the air cooling condenser, and performing heat-exchange with air, and 
 the refrigerant passing through all of the refrigerant channel parts for the water cooling condenser is introduced into the refrigerant channel parts for the air cooling condenser. 
 
     
     
       3. The air conditioner system for a vehicle of  claim 2 , wherein the integral condenser includes:
 a first refrigerant inlet formed in a region in which the refrigerant channel part for the water cooling condenser is formed and having a refrigerant introduced therethrough and a first refrigerant outlet formed in the region in which the refrigerant channel part for the water cooling condenser is formed and discharging the refrigerant; 
 a second refrigerant inlet formed in a region in which the refrigerant channel part for the air cooling condenser is formed and having the refrigerant introduced therethrough and a second refrigerant outlet formed in the region in which the refrigerant channel part for the air cooling condenser is formed and discharging the refrigerant; and 
 a coolant inlet formed in the coolant plate and having the coolant introduced therethrough and a coolant outlet formed in the coolant plate and discharging the coolant. 
 
     
     
       4. The air conditioner system for a vehicle of  claim 3 , wherein the coolant plate is formed by stacking a second upper plate and a second lower plate formed as a pair. 
     
     
       5. The air conditioner system for a vehicle of  claim 4 , wherein the refrigerant plate and the coolant plate include:
 first communication holes and second communication holes that are in communication with the first refrigerant inlet and the first refrigerant outlet in a stack direction to be hollowed so that the refrigerant flows to the refrigerant channel part for the water cooling condenser, the first communication holes and the second communication holes including first bonding parts formed along circumferences thereof and protruding outwardly of the refrigerant plate; and 
 third communication holes and fourth communication holes that are in communication with the coolant inlet and the coolant outlet in the stack direction to be hollowed so that the coolant flows to the coolant plate, the third communication holes and the fourth communication holes including second bonding parts formed along circumferences thereof and protruding outwardly of the coolant plate. 
 
     
     
       6. The air conditioner system for a vehicle of  claim 5 , wherein the refrigerant plate further includes: fifth to eighth communication holes that are in communication with the second refrigerant inlet and the second refrigerant outlet in the stack direction to be hollowed so that the refrigerant flows to the refrigerant channel part for the air cooling condenser, the fifth to eighth communication holes including third bonding parts formed along circumferences thereof and protruding outwardly of the refrigerant plate. 
     
     
       7. The air conditioner system for a vehicle of  claim 6 , wherein the refrigerant plate further includes a ninth communication hole hollowed at one side end portion or another side end portion of a side at which the refrigerant channel part for the air cooling condenser is formed so that the refrigerant flows, the ninth communication hole including a fourth bonding part formed along a circumference thereof and protruding outwardly of the refrigerant plate. 
     
     
       8. The air conditioner system for a vehicle of  claim 7 , wherein in the refrigerant plate,
 a division part protruding inwardly of the refrigerant plate to divide a predetermined region of an internal space into a first flow part corresponding to a condensing region and a second flow part corresponding to an excessive cooling region in a width direction of the refrigerant plates is extended in the length direction in a region in which the fifth to eighth communication holes are not formed in a region in which the refrigerant channel part for the air cooling condenser is formed, 
 the fifth communication hole and the sixth communication hole are disposed at the first flow part side at both side end portions of the division part, and 
 the seventh communication hole and the eighth communication hole are disposed at the second flow part side at both side end portions of the division part. 
 
     
     
       9. The air conditioner system for a vehicle of  claim 8 , wherein in the integral condenser,
 the second flow part is disposed at a front side in an air blowing direction, and the first flow part is disposed at a rear side in the air blowing direction, and 
 the refrigerant passing through the refrigerant channel part for the water cooling condenser is introduced into the first flow part through the second refrigerant inlet and is circulated through the first flow part, passes through a gas-liquid separator formed by allowing the ninth communication holes of a plurality of stacked refrigerant plates to be in communication with each other by the fourth bonding parts, is circulated through the second flow part, and is then discharged to the second refrigerant outlet. 
 
     
     
       10. The air conditioner system for a vehicle of  claim 9 , wherein the integral condenser further includes:
 a first connection part forming a channel so that the first refrigerant outlet and the second refrigerant inlet are connected to each other; 
 a second connection part forming a channel so that the fifth communication hole or the sixth communication hole of the first flow part and the ninth communication hole are connected to each other in the refrigerant plate positioned at the uppermost end; and 
 a third connection part forming a channel so that the seventh communication hole or the eighth communication hole of the second flow part and the ninth communication hole are connected to each other in the refrigerant plate positioned at the lowermost end, and 
 the first to third connection parts are formed in an external pipe shape. 
 
     
     
       11. The air conditioner system for a vehicle of  claim 9 , wherein the integral condenser further includes:
 a first connection part forming a channel so that the first refrigerant outlet and the second refrigerant inlet are connected to each other; 
 a second connection part forming a channel so that the fifth communication hole or the sixth communication hole of the first flow part and the ninth communication hole are connected to each other in the refrigerant plate positioned in a predetermined upper region; and 
 a third connection part forming a channel so that the seventh communication hole or the eighth communication hole of the second flow part and the ninth communication hole are connected to each other in the refrigerant plate positioned in a predetermined lower region, and 
 the first to third connection parts are formed in the refrigerant plate. 
 
     
     
       12. The air conditioner system for a vehicle of  claim 7 , wherein the integral condenser is formed so that the seventh communication hole formed at one side adjacent to the refrigerant channel part for the water cooling condenser and the sixth communication hole formed at the other side among the fifth to eighth communication holes are opened, and the fifth communication hole and the eighth communication holes among the fifth to eighth communication holes are closed, and includes a sixth communication channel part and a seventh communication channel part formed by allowing the sixth communication holes and the seventh communication holes of a plurality of stacked refrigerant plates to be in communication with each other, respectively, by the third bonding parts in the region in which the refrigerant channel part for the air cooling condenser is formed, partition parts are formed in predetermined regions of the sixth communication channel part and the seventh communication channel part, such that a first flow part corresponding to a condensing region and a second flow part corresponding to an excessive cooling region are separated from each other in a height direction, and the first flow part is disposed above the second flow part. 
     
     
       13. The air conditioner system for a vehicle of  claim 1 , wherein the integral condenser is disposed so that the refrigerant channel part for the air cooling condenser is formed on a front surface in an air blowing direction, and the refrigerant channel part for the water cooling condenser is formed on a rear surface in the air blowing direction. 
     
     
       14. The air conditioner system for a vehicle of  claim 13 , wherein the coolant plate includes an air guiding part of which a surface positioned on a front surface in the air blowing direction protrudes forwardly from an edge toward a central portion so that blown air is guided and flows from the center to the edge. 
     
     
       15. The air conditioner system for a vehicle of  claim 14 , wherein the integral condenser includes a blowing fan installed on a front surface of a side at which the refrigerant channel parts for the air cooling condenser are formed. 
     
     
       16. The air conditioner system for a vehicle of  claim 2 , wherein the integral condenser includes a gas-liquid separator further formed on one plate. 
     
     
       17. The air conditioner system for a vehicle of  claim 16 , wherein the gas-liquid separator is formed at one side end portion of the refrigerant channel parts for the air cooling condenser corresponding to a space between the refrigerant channel part for the water cooling condenser and the refrigerant channel parts for the air cooling condenser, or is formed at another side end portion of the refrigerant channel parts for the air cooling condenser. 
     
     
       18. The air conditioner system for a vehicle of  claim 17 , wherein in the integral condenser, the gas-liquid separator is formed at one side end portion of the refrigerant channel parts for the air cooling condenser corresponding to the space between the refrigerant channel part for the water cooling condenser and the refrigerant channel parts for the air cooling condenser, such that the refrigerant passing through the refrigerant channel part for the water cooling condenser is separated into a gas-phase refrigerant and a liquid-phase refrigerant in the gas-liquid separator and the refrigerant discharged from the gas-liquid separator passes through the refrigerant channel part for the air cooling condenser and is then discharged to the outside. 
     
     
       19. The air conditioner system for a vehicle of  claim 17 , wherein in the integral condenser, the gas-liquid separator is formed at the other side end portion of the refrigerant channel part for the air cooling condenser, such that the refrigerant passing through the refrigerant channel part for the water cooling condenser passes through a condensing region of the refrigerant channel part for the air cooling condenser and is then introduced into the gas-liquid separator and the refrigerant discharged from the gas-liquid separator passes through an excessive cooling region of the refrigerant channel part for the air cooling condenser and is then discharged to the outside. 
     
     
       20. The air conditioner system for a vehicle of  claim 17 , wherein in the integral condenser, the gas-liquid separator is formed at the other side end portion of the refrigerant channel part for the air cooling condenser, such that the refrigerant passing through the refrigerant channel part for the water cooling condenser passes through the refrigerant channel part for the air cooling condenser and is then introduced into the gas-liquid separator and the refrigerant discharged from the gas-liquid separator is discharged to the outside. 
     
     
       21. The air conditioner system for a vehicle of  claim 1 , further comprising an auxiliary heat exchanger connected between the integral condenser and the expansion valve and heat-exchanging the refrigerant discharged from the integral condenser and the refrigerant discharged from the evaporator with each other. 
     
     
       22. The air conditioner system for a vehicle of  claim 21 , wherein the auxiliary heat exchanger is additionally stacked and formed on the uppermost end or the lowermost end of the refrigerant plate in which the refrigerant channel part for the water cooling condenser is formed.